Drain channel



FIG. 1 is a front perspective view of the invention;

FIG. 2 is a bottom plan view of the FIG. 1; and,

FIG. 3 is a rear elevation view of FIG. 1.

The broken lines, shown in the drawings, depict portions of the drain channel and form no part of the claimed design. 

CLAIM The ornamental design for a drain channel, as shown and described. 